
ul{

    list-style: none;
    
    }
    li{
       display: inline; 
       text-align: center;
    }
    
    .headleft{
        width: 110px;
        margin-left: 475px;
        float: left;
        /* border: 2px solid; */
    }
    
    .headright{
        width: 300px;
        height: 30px;
        text-align: center;
        background-color:rgb(7, 172, 95);
        /* float: right;  */
        /* margin-right: 470px; */
        margin-left:1120px;
        /* margin-left:300px; */
       
    }
    
    /* .a{
        width: 1000px;
        height: 50px;
        border: 2px solid red;
    } */
    .daohang{
        margin-left: 465px;
        /* align-self: center; */
        width: 960px;
        clear:both;
        text-align: center;
        background:url("img/menuBg.jpg");
        -webkit-mask-repeat-x:1
    }
    
    .tushubang,.foot{
        margin-left:460px;
        
        /* text-align: center; */
    }
      
    .neirong{
        margin-left:460px;
        width: 960px;
        height: 460px;
        border:5px solid green;
        position: relative;
    }
    .zuoshang{
       /*padding-left:10px;*/
       width: 300px;
       position: relative;
       left:-20px;
       top: 20px;
                         /* border:2px solid #0000FF  */
    }
    .zuoxia{
        width: 300px;
        position: relative;
        left: 0px;
        top:50px;
        /* right: 200px; */
                 /* border:2px solid #0000FF  */
    }
    .zhong{
        float: right;
        /* clear: both; */
        /* align:left; */
        position: relative;
        margin-top: -250px;
        margin-right: 370px;
        width: 300px;
    }
    
    .youshang{
        float: right;
        clear: both;
        position: relative;
        margin-top: -300px;
        margin-right: 220px;
                /* border:2px solid #0000FF  */
    }
    .youxia{
        float: right;
        clear: both;
        position: relative;
        margin-top: -320px;
        margin-right: 250px;
                 /* border:2px solid #0000FF  */
    }
    .one{
        position: relative;
        width: 45px;
       
    }
    .two{
        position: relative;
        margin-right: 100px;
        /* margin-top: 100px; */
        width: 45px;
        z-index: 5;
    }
    .three{
        position: relative;
        margin-right: 40px;
        z-index: 5;
    }
    .book-02,.book-03{
        position: relative;
        margin-top: -20px;
        width: 104px;
        z-index: 3;
    }
    .youyoushang{
        float: right;
        clear: both;
        position: relative;
        width: 220px;
        top:-320px;
        right: 20px;
                /* border:2px solid #0000FF  */
    }
    .youyouxia{
        float: right;
        clear: both;
        position: relative;
        width: 220px;
        top:-310px;
        right: 20px;
                /* border:2px solid #0000FF  */
    }
    .foot{
        width: 1000px;
        height: 50px;
                /* border: 2px solid red */
         
    }
    .foot1,.foot2,.foot3{
         
        float: right;
        /* top: -500px; */
    }
    .foot1{
        margin-top:-120px; 
        margin-right:-210px;
    
    }
    .foot2{
        margin-top:-120px; 
        margin-right: 240px;
    }
    .foot3{
        margin-top:-120px; 
        margin-right: 285px;
    }
    /* .foot2{
         
         float: right;
     }
     .foot3{
         
         float: right;
     } */